The following has excerpts from New Mobile Suit Report Gundam W Complete Recording History of Thank Kingdom which came out in 1996 by Media Works. Pages 18 to 21, under the "Characters" category, contains short lines that act as a character summary and his usual character data. On page 70, under "Characters File", is a character description and character setting images of his casual attire, clown outfit, OZ Astro Suit and facial expressions.
Trowa Barton
GUNDAM-03
The masked clown who removed his makeup...
GUNDAM HEAVYARMS2 [xxxG-01 H2]
[TROWA BARTON]
Status / Affiliation: MS Gundam Heavyarms Kai Pilot
Age: Unknown (estimated 15 years old)
Ethnicity: Unknown
Sex: Male
Birthplace: Unknown (estimated L3 Colony Group)
Family: Unknown
Height: 160 cm
Weight: 44 kg
Eye Color: Dark Green
Hair Color: Mustard Brown
Continuing to kill himself, he dances through the universe with a heart free of attachments. Carried away by his mission and tossed about by fate, Trowa changed greatly after meeting Catherine. She became a figure in Trowa's heart and created a place where he belongs.
I killed myself In my empty heart Something was born...
Having found his place in the world, he seemed to have grown significantly as a man. He never spoke about anything, and his quiet demeanor never changed... Trowa was one of the few people who achieved happiness in this battle.
Trowa Barton
A young boy whose origin, age, and affiliation are all shrouded in mystery. Since arriving on Earth, he has been living as a clown that never smiles in the circus troupe where Catherine works. He seems to have grown fond of the acrobatic moves he learned there, so much so that he unconsciously uses them on the battlefield...